Wind and Structures

  • 제16권4호
  • /
  • Pages.373-391
  • /
  • 2013
  • /
  • 1226-6116(pISSN)
  • /
  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Wind-induced response and loads for the Confederation Bridge -Part I: on-site monitoring data

  • Bakht, Bilal (Ministry of Transportation and Infrastructure) ;
  • King, J. Peter C. (Boundary Layer Wind Tunnel Laboratory, University of Western Ontario) ;
  • Bartlett, F.M. (Department of Civil and Environmental Engineering, University of Western Ontario)
  • 투고 : 2011.09.07
  • 심사 : 2012.05.17
  • 발행 : 2013.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

This is the first of two companion papers that analyse ten years of on-site monitoring data for the Confederation Bridge to determine the validity of the original wind speeds and wind loads predicted in 1994 when the bridge was being designed. The check of the original design values is warranted because the design wind speed at the middle of Northumberland Strait was derived from data collected at shore-based weather stations, and the design wind loads were based on tests of section and full-aeroelastic models in the wind tunnel. This first paper uses wind, tilt, and acceleration monitoring data to determine the static and dynamic responses of the bridge, which are then used in the second paper to derive the static and dynamic wind loads. It is shown that the design ten-minute mean wind speed with a 100-year return period is 1.5% less than the 1994 design value, and that the bridge has been subjected to this design event once on November 7, 2001. The dynamic characteristics of the instrumented spans of the bridge including frequencies, mode shapes and damping are in good agreement with published values reported by others. The on-site monitoring data show bridge response to be that of turbulent buffeting which is consistent with the response predicted at the design stage.

키워드

참고문헌

  1. ASCE. 7. (2005), Minimum design loads for buildings and other structures, American Society of Civil Engineers, Reston, Virginia, VA, USA.
  2. Bakht, B. (2010), Assessment of wind induced response and drivability of the Confederation Bridge, Ph.D. Thesis, Department of Civil and Environmental Engineering, University of Western Ontario.
  3. Brown, T.G., and Bruce, J.R. (1997), Confederation Bridge ice force monitoring joint industry project annual report - 1997, IFN Engineering Ltd.
  4. Brown, T.G. (2007), "Ice force monitoring", Confederation Bridge Engineering Summit Proceedings, Charlottetown, PEI, Canada.
  5. Bruce, J.R., and Croasdale, K.R. (2001), Confederation Bridge ice force monitoring joint industry project annual report, IFN Engineering Ltd. Report Number 00-1-001, 40p.
  6. Cheung, M.M.S., Tadros, G.S., Brown, T., Dilger, W.H., Ghali, A. and Lau, D.T. (1997), "Field monitoring and research on performance of the Confederation Bridge", Can. J. Civil Eng., 24(6), 951-962.
  7. Cole, A.H. (1973), On-line failure detection and damping measurement of aerospace structures by random decrement signatures, NASA, CR-2205.
  8. Davenport, A.G. (1964), "Note on the distribution of the largest value of a random function with application to gust loading", Proceedings of the Institution of Civil Engineers. Paper No. 6739, Vol. 28.
  9. Davenport, A.G. (1977), "The prediction of risk under wind loading", Proceedings of the 2nd International Conference on Structural Safety and Reliability - ICOSSAR, Munich Germany pp 511-538.
  10. Davenport, A.G. and King, J.P.C. (1984), "Dynamic wind forces on long span bridges", Proceedings of the 12th IABSE Congress, Vancouver, Canada.
  11. Davenport, A.G. (1988), "The response of tension structures to turbulent wind: the role of aerodynamic damping", Proceedings of the 1st International Oleg Kerensky Memorial Conference on Tension Structures, London, England.
  12. Engineering Sciences Data Units. (1993), Strong Winds in the Atmospheric Boundary Layer, Data Items 82026, ESDU International.
  13. JMS. (1995), Design Criteria Northumberland Strait Crossing Project, Revision 7.0., Jean Muller International, Stanley Joint Venture Inc. Calgary, Alberta.
  14. King, J.P.C., Mikitiuk, M.J., Davenport, A.G. and Isyumov, N. (1994), A study of wind effects for the Northumberland Straits Crossing, BLWT-SS8-1994, Boundary Layer Wind Tunnel Laboratory, University of Western Ontario (parts of this report have been published in King and Davenport 1994, King 1999).
  15. King, J.P.C. and Davenport, A.G. (1994), "P.E.I. fixed link - the treatment of wind effects for the northumberland strait crossing", Proceedings of the 4th International Conference on Short and Medium Span Bridges, Halifax, Nova Scotia, Canada.
  16. King, J.P.C., Crooks, G.J. and Davenport, A.G. (1995), The Northumberland Straits Crossing, Prince Edward Island Testing of Marine Span Aeroelastic Model and Analysis of Dynamic Wind Loads, BLWT-SS24-1995, Boundary Layer Wind Tunnel Laboratory, University of Western Ontario.
  17. King, J.P.C. (1999), "Integrating wind tunnel tests of full-aeroelastic models into the design of long span bridges", Proceedings of the 10th International Conference on Wind Engineering (ICWE), Copenhagen, Denmark.
  18. King, J.P.C. (2003), The Aerodynamics of Long Span Bridges, PhD Thesis, Department of Civil and Environmental Engineering, University of Western Ontario, London Ontario, Canada.
  19. Londono, N.A. (2006), Use of Vibration Data for Structural Health Monitoring of Bridges, Department of Civil and Environmental Engineering, Carleton University, Ottawa, Canada.
  20. Lau, D.T., Brown, T., Cheung, M.S. and Li, W.C. (2004), "Dynamic modeling and behaviour of the Confederation Bridge", Can. J. Civil Eng., 31(2), 379-390 https://doi.org/10.1139/l03-106
  21. MacGregor, J.G., Kennedy, D.J.L., Bartlett, F.M., Chernenko, D., Maes, M.A. and Dunaszegi, L. (1997), "Design criteria and load and resistance factors for the Confederation Bridge", Can. J. Civil Eng., 24(6), 882-897.
  22. Montreuil, M.A. (1999a), Confederation Bridge monitoring project high-speed data logger system, Technical Manual, Preliminary Version, Thermal Technology Centre, National Research Council Canada.
  23. Montreuil, M.A. (1999b), Confederation Bridge monitoring project slow-speed data logger system, Technical Manual, Preliminary Version, Thermal Technology Centre, National Research Council Canada.
  24. Naumoski, N., Cheung, M.S. and Foo, S. (2002), "Dynamic characteristics of the Confederation Bridge", Can. J. Bridge Eng., 29, 448-458.
  25. Naumoski, N., Cheung, M.S. and Foo, S. (2004), "Dynamic performance of the Confederation Bridge due to traffic and wind", Can. J. Civil Eng., 31(3), 487-498. https://doi.org/10.1139/l04-023
  26. Tadros, G. (1997), "The Confederation Bridge: an overview", Can. J. Civil Eng., 24(6), 850-866.
  27. Xu, Z., Bekele, S., Mikitiuk, M., Isyumov, N. and Ho, E. (2008), "Bi-Modal weibull distribution fit for climatic wind speed histogram", Proceedings of the 13th Australian Wind Engineering Society (AWES) Workshop, Hobart, Australia.

피인용 문헌

  1. A method for improving the dynamic response of full bridge reduced-scale models in aeroelastic wind tunnel tests by using optimization algorithms vol.167, 2017, https://doi.org/10.1016/j.jweia.2017.04.003